Add to ORKGPhotograph of openings in a hillside during the construction of a bridge, [s.d.]. The steep rocky hillside can be seen at right, and three rectangular openings can be seen on its face, arrayed in a triangular formation. Railroad tracks lead into the two lower openings, while a ladder leads from the upper one. Several men and a small car can be seen in the foreground at center. More workers can be seen in the background at left
Photograph of Mount Lowe Railway Great Circular Bridge and track, California, [s.d.]. In the backgro...
Photograph of Mount Lowe Railway circular bridge, [s.d.]. To the right, the circular section of trac...
Photograph of a Los Angeles and San Gabriel Railroad bridge under construction over the Arroyo Seco ...
A railroad bridge runs over a shallow portion of a river (in the photograph\u27s foreground) near a ...
A railroad bridge runs over a shallow portion of a river (in the photograph\u27s foreground) near a ...
Photograph of small wooden suspension bridge over construction area, [s.d.]. In the foreground at le...
A photograph of an unidentified railroad bridge, leading into a tunnel. Rolling hills extend in the ...
Photograph of construction work on a hillside, ca.1930. To the left of center sit four stacks of bri...
Photograph of Consolidated Rock Products digging in a rocky trench, 1929. In the background at cente...
Photograph of Ninth Street Bridge showing cracks, October 1928. In the extreme foreground at left, t...
A photograph of the beginning piles of a bridge across a specific canyon. A construction vehicle sit...
Photograph of the construction of an unidentified bridge in Los Angeles, [s.d.]. A large dirt ditch ...
Railroad bridge abutment under construction, ca. 1900, b&w This series of photos are of the construc...
Photograph of Mount Lowe Railway circular bridge, California, [s.d.]. Train tracks can be seen in th...
Photograph of Mount Lowe Railway circular bridge, California, [s.d.]. Train tracks can be seen in th...
Photograph of Mount Lowe Railway Great Circular Bridge and track, California, [s.d.]. In the backgro...
Photograph of Mount Lowe Railway circular bridge, [s.d.]. To the right, the circular section of trac...
Photograph of a Los Angeles and San Gabriel Railroad bridge under construction over the Arroyo Seco ...
A railroad bridge runs over a shallow portion of a river (in the photograph\u27s foreground) near a ...
A railroad bridge runs over a shallow portion of a river (in the photograph\u27s foreground) near a ...
Photograph of small wooden suspension bridge over construction area, [s.d.]. In the foreground at le...
A photograph of an unidentified railroad bridge, leading into a tunnel. Rolling hills extend in the ...
Photograph of construction work on a hillside, ca.1930. To the left of center sit four stacks of bri...
Photograph of Consolidated Rock Products digging in a rocky trench, 1929. In the background at cente...
Photograph of Ninth Street Bridge showing cracks, October 1928. In the extreme foreground at left, t...
A photograph of the beginning piles of a bridge across a specific canyon. A construction vehicle sit...
Photograph of the construction of an unidentified bridge in Los Angeles, [s.d.]. A large dirt ditch ...
Railroad bridge abutment under construction, ca. 1900, b&w This series of photos are of the construc...
Photograph of Mount Lowe Railway circular bridge, California, [s.d.]. Train tracks can be seen in th...
Photograph of Mount Lowe Railway circular bridge, California, [s.d.]. Train tracks can be seen in th...
Photograph of Mount Lowe Railway Great Circular Bridge and track, California, [s.d.]. In the backgro...
Photograph of Mount Lowe Railway circular bridge, [s.d.]. To the right, the circular section of trac...
Photograph of a Los Angeles and San Gabriel Railroad bridge under construction over the Arroyo Seco ...